When i learn vm i always speak out loud the sentences i am learning. But after that my voice is always kind of itchy or my throat is a bit sore or so. Especially when there are many nặng-tones. Does anybody else have this problem?
I don't really get that, but I do sometimes feel a bit fatigued from enunciating a foreign language for a long session. Presumably it's due to our vocal apparatus not being used to producing sounds in this way, and practice being needed to strengthen it.